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Finding the Fourth Proportional to 210,549.92, 315,731.05 and 60,754.62

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Solution

The fourth proportional to 210,549.92, 315,731.05 and 60,754.62 is: 91,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,549.92 : 315,731.05 = 60,754.62 : x
  2. Step 2: Convert to fraction form
    210,549.92/315,731.05 = 60,754.62/x
  3. Step 3: Cross multiply
    210,549.92x = 315,731.05 × 60,754.62
  4. Step 4: Simplify right side
    210,549.92x = 19,182,120,997.06
  5. Step 5: Solve for x
    x = 19,182,120,997.06/210,549.92
  6. Step 6: Final answer
    x = 91,104.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.